A broken tooth is similar to a lost filling in that you can feel it with your tongue. However, the difference is that the missing part of the tooth is on the edge towards the tongue or cheek and not in between the teeth. It is usually sensitive to cold and feels sharp. It is important to see the dentist as soon as possible. Since Delmarva Dental Services has 4 dentists on staff so you can usually be seen soon. The tooth will most likely need a crown or onlay. Temporary fillings usually do not hold.